FreeBSD +NFS + mail services

[Darren Pilgrim]

From: Francisco Reyes [mailto:lists at stringsutils.com] 
> Darren Pilgrim writes:
> > From: Francisco Reyes
> >> Oliver Brandmueller writes:
> >> > 
> >> > vfs.nfs.iodmaxidle: 120
> >
> > It's an idle timeout that basically tunes the aggression
> > level of nfsiod kthread recycling.
> 
> So, that's how long a nfsiod remains around after it is no 
> longer active?

It's how long a kthread can sleep before exiting.

> I see that in 2 machines FreeBSD 6 Stable and 5.0 release the 
> machines start 20 clients, some of which have 0 or near 0 time 
> utilization.. but they don't seem to ever go away..  

What's the value of vfs.nfs.iodmin on these machines?